applicant with two passports

[betty44]

greetings, my ielts certification and my express entry profile are under my old pasport which already experied. now i have a new one. i still do not have an ita, in case i receive an invitation, do i have to send both passports to ottawa? and
do i have to update my express entry and put my new passport number?

thank you

 

[bellaluna]

Only the new one.

Update your Express Entry profile now with the new passport details.

The old one is irrelevant.